December weather forecastGalliano, LA
December
Weather in December
The first month of the winter, December, is still a refreshing month in Galliano, Louisiana, with an average temperature ranging between min 52.9°F (11.6°C) and max 64.8°F (18.2°C).Temperature
In December, Galliano notes an average high-temperature of an enjoyable 64.8°F (18.2°C), hardly different from the preceding month. Nighttime temperature experiences an average drop to a cool 52.9°F (11.6°C) in December.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 77%.Rainfall
In December, in Galliano, the rain falls for 9.1 days. Throughout December, 1.34" (34mm) of precipitation is accumulated. In Galliano, during the entire year, the rain falls for 139.9 days and collects up to 16.38" (416mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 10h and 18min of daylight.On the first day of December, sunrise is at 6:38 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:13 pm CST.
Sunshine
With an average of 5.4h of sunshine, December has the least sunshine of the year in Galliano.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in December leads to these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Galliano, LA
- Average high temperature in December: 64.8°F
The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is January (61.5°F).
- Average low temperature in December: 52.9°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is January (49.1°F).
Average pressure in December
Galliano, LA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).
Average wind speed in December
Galliano, LA
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
Galliano, LA
- Average humidity in December: 77%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Galliano, LA
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is August (2.76").
The driest month (with the least rainfall) is March (0.63").
Average rainfall days in December
Galliano, LA
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (6.5 days).
Average daylight in December /
Average sunshine in December
Galliano, LA
- Average daylight in December: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Galliano, LA
- Average sunshine days in December: 19.9 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (8.4 days).
Average UV index in December
Galliano, LA
- Average UV index in December: 4
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Galliano, LA
- Average cloud cover in December: 43
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in December
Galliano, LA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
